Trusted Execution for ML is the use of hardware-based Trusted Execution Environments (TEEs) to protect ML models and data during computation — processing sensitive data and model inference inside a secure, hardware-isolated enclave that even the host operating system cannot access.

TEE Technologies

• Intel SGX: Intel's Software Guard Extensions — create encrypted enclaves in memory.
• ARM TrustZone: ARM's security extension — partition processor into secure and non-secure worlds.
• AMD SEV: Secure Encrypted Virtualization — encrypt VM memory with hardware keys.
• Confidential Computing: Cloud providers offer TEE-based VMs for secure ML inference.

Why It Matters

• Data-in-Use Protection: Unlike encryption (which protects data at rest and in transit), TEEs protect data during computation.
• Model Protection: The model is decrypted only inside the TEE — prevents model extraction by the cloud provider.
• Attestation: Remote attestation proves to clients that their data is processed inside a genuine TEE.

Trusted Execution is hardware-secured computation — using isolated, encrypted processor enclaves to protect both models and data during ML inference.